Window-locking device



E. A. ROSENBERG.

WINDOW-LOCKING DEVICE.

APPLICAHUN FILED JUNE 24,1920.

7 Patented Aug. 30, 1921.

PATENT OFFICE.

EPHEEM A. ROSENBERG, OF DETROIT, MICHIG-AIN'.

WINDOW-LOCKING DEVICE.

Specification of Letters Patent. Patented Aug. 30, 1921.

Application filed June 24, 1920. Serial No. 391,267.

To all whom it may concern Be it known that I, EPHEEM A. RosEN- BERG, acitizen of Russia, residing at Detroit, in the county of Wayne and Stateof Michigan, have invented certain new and useful Improvements inWindow-Locking Devices, of which the following is a specification,reference being had therein tothe accompanying drawings.

This invention relates to a window looking device, and has specialreference to that class of devices carried by window sashes forconnecting the sashes together so that the sashes may be adjusted insynchronism.

My invention aims to provide simple and durable pieces of hardware thatmay be easily and quickly attached to window sashes to permit of a lowersash being automatically connected to an upper sash, when the lower sashis raised or opened, thus preventing excessive adjustment of the lowersash and any adjustment without moving the upper sash. The advantagegained by such a constructive arrangement of parts is that of limitingthe opening movement ofthe lower sash relative to an upper sash andpermitting of the operator of the lower sash adjusting the upper sashwithout using a sash stick or similar tool. Then again, properventilation of an apartment is had when a lower sash is closed, byreason of the upper sash being opened due to its connection with thelower sash. This connection, however, is optional and provision is alsomade to compensate for sashes of different thicknesses, thus permittingof the locking device being applied to any window sashes to preventburglarizing.

The mechanical construction entering into my invention will behereinafter more fully described, and then claimed, and reference willnow be had to the drawings, wherein- Figure 1 is a perspective view of aportion of a window frame and sashes, showing the sashes articulated formovement in synchronism;

Fig. 2 is a vertical sectional view of a portion of the sashes in closedpositions, showing the device to be automatically actuated by the lowersash, and

Fig. 3 is an enlarged detail sectional view of the locking devicesarticulating the window sashes.

In the drawing, the reference numeral 1 denotes the meeting rail of alower window sash 2 and 3 is one of the side rails of an upper sash 4,these window sashes being adustable in a conventional form of windowframe 5.

6 denotes a channel ratchet member vertically disposed onthe side rail.3 of the upper sash 4L, and connected thereto by screws 7 or otherfastening means, said channel ratchet member being ositioned at adesired height above the meeting rail 8 of the upper sash.

The channel ratchet member 6 has its side walls 9 provided with a seriesof notches 10 and the lower ends of the side walls 9 terminate in stopmembers 11, which project outwardly from the member 6 and provide acentral guide slot 12. Pivotally mounted in the inner end of the slot 12is the slotted end of an arm 13, the slotted end of said the latch 17 tothe arm 13 serves as a support in the side walls 9 of the member 6 forholding the arm 7 in approximately a vertical position with the lowerslotted end of said arm protruding from the lower end of the member 6,as best shown in Fig. 2, and when the arm is in such position the latch17 hangs from the upper end of the arm and partially within the channelmember.

19 denotes a keeper mounted on the meeting rail 1 of the lower sash 2 atthe upper end of the side rail of said sash, and this keeper is adaptedto be engaged by the latch 17 when the lower sash is employed forlowering the upper sash, also when the sashes are locked together.

The normal condition of the locking device is shown in Fig. 2, andassuming that the lower sash is raised the meeting rail 1 thereofimpinges against the inner end of the arm 13 and raises said arm so thatthe ends of the pin 16 will ride out of the notches 10 of the channelmember. On account of the pivotal arrangement of the arm 13, the

sashes being locked together by the arm 13 and the latch 17 the lowersash cannot be lowered without lowering the upper sash nor can the uppersash be lowered without lowering the lower sash. It is therefore obviousthat when an operator closes the lower sash 2 that the upper sash 4 islowered for ventilating purposes, but should the operator desire toclose the sash 2 without opening the sash 4 then the latch 17 iselevated and the arm 18 placed within the channel member 6, as shown inFig. 2.

The pieces of hardware may be finished to harmonize with finish of thesashes 2 and" 4, and while in the drawing there is illustrated thepreferred embodiment of my invention, it is to be understood that thestructural elements are susceptible to such changes, in size, shape andmanner of assemblage as fall within the scope of the appended claims.

\Vhat I claim is:

1. The combination of an upper sash, a lower sash, a keeper on the innerface of said lower sash, and an arm carried by a side rail of said uppersash above the meeting rail thereof and adapted to be shifted 'by themeeting rail of said lower sash engaging the lower end of said arm whensaid lower sash is raised to cause said arm to engage said keeper andconnect said sashes so that the upper sash may be lowered with the lowersash.

2. The combination set forth in claim 1,

wherein a channel member supports said arm and is connected to the uppersash to support said arm in a position to be actuated by the meetingrail of said lower sash.

3. A window lock device comprising a channel member adapted forattachment to the side rail of an upper sash to limit theupward'movement of a lower sash, an arm loosely connected to saidmember, a latch carried by said arm, a pin connecting said latch to saidarm and adapted to support said arm in said member to be engaged, andshifted by the rail of the lower sash and a keeper adapted forattachment to the lower sash to be engaged by said latch to articulatethe sashes so that said sashes may 7 be lowered in synchronism.

4. A window locking device as characterized in claim 3, wherein thechannel member is notched to receive said pin, and said pin adjustablerelative'to said arm to compensate for sashes of different thicknesses.

5. The combination of an upper sash, a lower sash, and means carried bysaid upper sash normally supported to be actuated by the raising saidlower sash to articulate said sashes so that said sashes may be loweredtogether.

In testimony whereof I afiix my signature in the presence of twowitnesses.

EPHEEM A. ROSENBERG.

Witnesses:

KARL H. BUTLER, ANNA M. Donn.

